The fact is...can I use the router without monitor/keyboard/mouse? In other words, my idea is to use a graphic remote control (on pc1) in order to activate the router. On pc1 I use the latest Vectorlinux, while on the "router" there's the Vector 5.1 already installed. Yet I could just leave the router without a gui-mode, but I could set some useful apps as well, even if it's not a powerful machine.

Yes, you can do that, there is a lot of linux distros specialy made with this porpouse, check this:http://librenix.com/?inode=3585You can find more with google. Will be a lot more easy than configure VL5.1 to do the same thing. Just my idea. In other hand, that hardware is too good for a router mini-distro. So, I would do that: get an older 486 with 32mb, configure a router distro on it, and make that k6 the pc #5.Hope this help, please post back if dont, and let us know how it goes...